1 | # Copyright 1999-2011 Gentoo Foundation |
1 | # Copyright 1999-2012 Gentoo Foundation |
2 | # Distributed under the terms of the GNU General Public License v2 |
2 | # Distributed under the terms of the GNU General Public License v2 |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.159 2011/12/07 06:42:40 vapier Exp $ |
3 | # $Header: /var/cvsroot/gentoo-x86/eclass/flag-o-matic.eclass,v 1.176 2012/06/18 06:45:28 grobian Exp $ |
4 | |
4 | |
5 | # @ECLASS: flag-o-matic.eclass |
5 | # @ECLASS: flag-o-matic.eclass |
6 | # @MAINTAINER: |
6 | # @MAINTAINER: |
7 | # toolchain@gentoo.org |
7 | # toolchain@gentoo.org |
8 | # @BLURB: common functions to manipulate and query toolchain flags |
8 | # @BLURB: common functions to manipulate and query toolchain flags |
9 | # @DESCRIPTION: |
9 | # @DESCRIPTION: |
10 | # This eclass contains a suite of functions to help developers sanely |
10 | # This eclass contains a suite of functions to help developers sanely |
11 | # and safely manage toolchain flags in their builds. |
11 | # and safely manage toolchain flags in their builds. |
12 | |
12 | |
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13 | if [[ ${___ECLASS_ONCE_FLAG_O_MATIC} != "recur -_+^+_- spank" ]] ; then |
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14 | ___ECLASS_ONCE_FLAG_O_MATIC="recur -_+^+_- spank" |
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15 | |
13 | inherit eutils toolchain-funcs multilib |
16 | inherit eutils toolchain-funcs multilib |
14 | |
17 | |
15 | ################ DEPRECATED functions ################ |
18 | # Return all the flag variables that our high level funcs operate on. |
16 | # The following are still present to avoid breaking existing |
19 | all-flag-vars() { |
17 | # code more than necessary; however they are deprecated. Please |
20 | echo {C,CPP,CXX,CCAS,F,FC,LD}FLAGS |
18 | # use gcc-specs-* from toolchain-funcs.eclass instead, if you |
21 | } |
19 | # need to know which hardened techs are active in the compiler. |
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20 | # See bug #100974 |
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21 | # |
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22 | # has_hardened |
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23 | # has_pie |
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24 | # has_pic |
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25 | # has_ssp_all |
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26 | # has_ssp |
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27 | |
22 | |
28 | |
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29 | # {C,CXX,F,FC}FLAGS that we allow in strip-flags |
23 | # {C,CPP,CXX,CCAS,F,FC,LD}FLAGS that we allow in strip-flags |
30 | # Note: shell globs and character lists are allowed |
24 | # Note: shell globs and character lists are allowed |
31 | setup-allowed-flags() { |
25 | setup-allowed-flags() { |
32 | if [[ -z ${ALLOWED_FLAGS} ]] ; then |
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33 | export ALLOWED_FLAGS="-pipe" |
26 | ALLOWED_FLAGS="-pipe" |
34 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -O -O0 -O1 -O2 -mcpu -march -mtune" |
27 | ALLOWED_FLAGS+=" -O -O1 -O2 -Os -mcpu -march -mtune" |
35 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fstack-protector -fstack-protector-all" |
28 | ALLOWED_FLAGS+=" -fstack-protector -fstack-protector-all" |
36 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fbounds-checking -fno-strict-overflow" |
29 | ALLOWED_FLAGS+=" -fbounds-checking -fno-strict-overflow" |
37 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-PIE -fno-pie -fno-unit-at-a-time" |
30 | ALLOWED_FLAGS+=" -fno-PIE -fno-pie -fno-unit-at-a-time" |
38 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" |
31 | ALLOWED_FLAGS+=" -g -g[0-9] -ggdb -ggdb[0-9] -gstabs -gstabs+" |
39 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-ident -fpermissive" |
32 | ALLOWED_FLAGS+=" -fno-ident -fpermissive" |
40 | export ALLOWED_FLAGS="${ALLOWED_FLAGS} -W* -w" |
33 | ALLOWED_FLAGS+=" -W* -w" |
41 | fi |
34 | |
42 | # allow a bunch of flags that negate features / control ABI |
35 | # allow a bunch of flags that negate features / control ABI |
43 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -fno-stack-protector -fno-stack-protector-all \ |
36 | ALLOWED_FLAGS+=" -fno-stack-protector -fno-stack-protector-all \ |
44 | -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow -fno-omit-frame-pointer" |
37 | -fno-strict-aliasing -fno-bounds-checking -fstrict-overflow \ |
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38 | -fno-omit-frame-pointer" |
45 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mregparm -mno-app-regs -mapp-regs \ |
39 | ALLOWED_FLAGS+=" -mregparm -mno-app-regs -mapp-regs -mno-mmx -mno-sse \ |
46 | -mno-mmx -mno-sse -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 \ |
40 | -mno-sse2 -mno-sse3 -mno-ssse3 -mno-sse4 -mno-sse4.1 -mno-sse4.2 \ |
47 | -mno-sse4.2 -mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow \ |
41 | -mno-avx -mno-aes -mno-pclmul -mno-sse4a -mno-3dnow -mno-popcnt \ |
48 | -mno-popcnt -mno-abm \ |
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49 | -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \ |
42 | -mno-abm -mips1 -mips2 -mips3 -mips4 -mips32 -mips64 -mips16 -mplt \ |
50 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
43 | -msoft-float -mno-soft-float -mhard-float -mno-hard-float -mfpu \ |
51 | -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \ |
44 | -mieee -mieee-with-inexact -mschedule -mfloat-gprs -mspe -mno-spe \ |
52 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs \ |
45 | -mtls-direct-seg-refs -mno-tls-direct-seg-refs -mflat -mno-flat \ |
53 | -mflat -mno-flat -mno-faster-structs -mfaster-structs \ |
46 | -mno-faster-structs -mfaster-structs -m32 -m64 -mx32 -mabi \ |
54 | -m32 -m64 -mx32 -mabi -mlittle-endian -mbig-endian -EL -EB -fPIC \ |
47 | -mlittle-endian -mbig-endian -EL -EB -fPIC -mlive-g0 -mcmodel \ |
55 | -mlive-g0 -mcmodel -mstack-bias -mno-stack-bias \ |
48 | -mstack-bias -mno-stack-bias -msecure-plt -m*-toc -mfloat-abi=* \ |
56 | -msecure-plt -m*-toc -D* -U*" |
49 | -D* -U*" |
57 | |
50 | |
58 | # 4.5 |
51 | # 4.5 |
59 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-fma4 -mno-movbe -mno-xop -mno-lwp" |
52 | ALLOWED_FLAGS+=" -mno-fma4 -mno-movbe -mno-xop -mno-lwp" |
60 | # 4.6 |
53 | # 4.6 |
61 | ALLOWED_FLAGS="${ALLOWED_FLAGS} -mno-fsgsbase -mno-rdrnd -mno-f16c \ |
54 | ALLOWED_FLAGS+=" -mno-fsgsbase -mno-rdrnd -mno-f16c -mno-bmi -mno-tbm" |
62 | -mno-bmi -mno-tbm" |
55 | # 4.7 |
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56 | ALLOWED_FLAGS+=" -mno-avx2 -mno-bmi2 -mno-fma -mno-lzcnt" |
63 | |
57 | |
64 | # {C,CXX,F,FC}FLAGS that we are think is ok, but needs testing |
58 | # CPPFLAGS and LDFLAGS |
65 | # NOTE: currently -Os have issues with gcc3 and K6* arch's |
59 | ALLOWED_FLAGS+=" -I* -L* -R* -Wl,*" |
66 | export UNSTABLE_FLAGS="-Os -O3 -freorder-blocks" |
60 | |
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61 | export ALLOWED_FLAGS |
67 | return 0 |
62 | return 0 |
68 | } |
63 | } |
69 | |
64 | |
70 | # inverted filters for hardened compiler. This is trying to unpick |
65 | # inverted filters for hardened compiler. This is trying to unpick |
71 | # the hardened compiler defaults. |
66 | # the hardened compiler defaults. |
… | |
… | |
94 | |
89 | |
95 | # Remove occurrences of strings from variable given in $1 |
90 | # Remove occurrences of strings from variable given in $1 |
96 | # Strings removed are matched as globs, so for example |
91 | # Strings removed are matched as globs, so for example |
97 | # '-O*' would remove -O1, -O2 etc. |
92 | # '-O*' would remove -O1, -O2 etc. |
98 | _filter-var() { |
93 | _filter-var() { |
99 | local f x VAR VAL |
94 | local f x var=$1 new=() |
100 | declare -a new |
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101 | |
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102 | VAR=$1 |
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103 | shift |
95 | shift |
104 | eval VAL=\${${VAR}} |
96 | |
105 | for f in ${VAL}; do |
97 | for f in ${!var} ; do |
106 | for x in "$@"; do |
98 | for x in "$@" ; do |
107 | # Note this should work with globs like -O* |
99 | # Note this should work with globs like -O* |
108 | [[ ${f} == ${x} ]] && continue 2 |
100 | [[ ${f} == ${x} ]] && continue 2 |
109 | done |
101 | done |
110 | eval new\[\${\#new\[@]}]=\${f} |
102 | new+=( "${f}" ) |
111 | done |
103 | done |
112 | eval export ${VAR}=\${new\[*]} |
104 | eval export ${var}=\""${new[*]}"\" |
113 | } |
105 | } |
114 | |
106 | |
115 | # @FUNCTION: filter-flags |
107 | # @FUNCTION: filter-flags |
116 | # @USAGE: <flags> |
108 | # @USAGE: <flags> |
117 | # @DESCRIPTION: |
109 | # @DESCRIPTION: |
118 | # Remove particular <flags> from {C,CPP,CXX,F,FC}FLAGS. Accepts shell globs. |
110 | # Remove particular <flags> from {C,CPP,CXX,CCAS,F,FC,LD}FLAGS. Accepts shell globs. |
119 | filter-flags() { |
111 | filter-flags() { |
120 | _filter-hardened "$@" |
112 | _filter-hardened "$@" |
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113 | local v |
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114 | for v in $(all-flag-vars) ; do |
121 | _filter-var CFLAGS "$@" |
115 | _filter-var ${v} "$@" |
122 | _filter-var CPPFLAGS "$@" |
116 | done |
123 | _filter-var CXXFLAGS "$@" |
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124 | _filter-var FFLAGS "$@" |
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125 | _filter-var FCFLAGS "$@" |
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126 | return 0 |
117 | return 0 |
127 | } |
118 | } |
128 | |
119 | |
129 | # @FUNCTION: filter-lfs-flags |
120 | # @FUNCTION: filter-lfs-flags |
130 | # @DESCRIPTION: |
121 | # @DESCRIPTION: |
… | |
… | |
136 | # _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...) |
127 | # _LARGEFILE64_SOURCE: enable support for 64bit variants (off64_t/fseeko64/etc...) |
137 | # _FILE_OFFSET_BITS: default to 64bit variants (off_t is defined as off64_t) |
128 | # _FILE_OFFSET_BITS: default to 64bit variants (off_t is defined as off64_t) |
138 | filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
129 | filter-flags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
139 | } |
130 | } |
140 | |
131 | |
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132 | # @FUNCTION: filter-ldflags |
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133 | # @USAGE: <flags> |
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134 | # @DESCRIPTION: |
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135 | # Remove particular <flags> from LDFLAGS. Accepts shell globs. |
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136 | filter-ldflags() { |
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137 | _filter-var LDFLAGS "$@" |
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138 | return 0 |
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139 | } |
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140 | |
141 | # @FUNCTION: append-cppflags |
141 | # @FUNCTION: append-cppflags |
142 | # @USAGE: <flags> |
142 | # @USAGE: <flags> |
143 | # @DESCRIPTION: |
143 | # @DESCRIPTION: |
144 | # Add extra <flags> to the current CPPFLAGS. |
144 | # Add extra <flags> to the current CPPFLAGS. |
145 | append-cppflags() { |
145 | append-cppflags() { |
… | |
… | |
186 | [[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments" |
186 | [[ $# -ne 0 ]] && die "append-lfs-flags takes no arguments" |
187 | # see comments in filter-lfs-flags func for meaning of these |
187 | # see comments in filter-lfs-flags func for meaning of these |
188 | append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
188 | append-cppflags -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE |
189 | } |
189 | } |
190 | |
190 | |
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191 | # @FUNCTION: append-ldflags |
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192 | # @USAGE: <flags> |
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193 | # @DESCRIPTION: |
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194 | # Add extra <flags> to the current LDFLAGS. |
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195 | append-ldflags() { |
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196 | [[ $# -eq 0 ]] && return 0 |
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197 | local flag |
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198 | for flag in "$@"; do |
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199 | [[ ${flag} == -l* ]] && \ |
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200 | ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" |
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201 | done |
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202 | |
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203 | export LDFLAGS="${LDFLAGS} $*" |
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204 | return 0 |
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205 | } |
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206 | |
191 | # @FUNCTION: append-flags |
207 | # @FUNCTION: append-flags |
192 | # @USAGE: <flags> |
208 | # @USAGE: <flags> |
193 | # @DESCRIPTION: |
209 | # @DESCRIPTION: |
194 | # Add extra <flags> to your current {C,CXX,F,FC}FLAGS. |
210 | # Add extra <flags> to your current {C,CXX,F,FC}FLAGS. |
195 | append-flags() { |
211 | append-flags() { |
196 | [[ $# -eq 0 ]] && return 0 |
212 | [[ $# -eq 0 ]] && return 0 |
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213 | case " $* " in |
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214 | *' '-[DIU]*) eqawarn 'please use append-cppflags for preprocessor flags' ;; |
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215 | *' '-L*|\ |
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216 | *' '-Wl,*) eqawarn 'please use append-ldflags for linker flags' ;; |
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217 | esac |
197 | append-cflags "$@" |
218 | append-cflags "$@" |
198 | append-cxxflags "$@" |
219 | append-cxxflags "$@" |
199 | append-fflags "$@" |
220 | append-fflags "$@" |
200 | return 0 |
221 | return 0 |
201 | } |
222 | } |
… | |
… | |
203 | # @FUNCTION: replace-flags |
224 | # @FUNCTION: replace-flags |
204 | # @USAGE: <old> <new> |
225 | # @USAGE: <old> <new> |
205 | # @DESCRIPTION: |
226 | # @DESCRIPTION: |
206 | # Replace the <old> flag with <new>. Accepts shell globs for <old>. |
227 | # Replace the <old> flag with <new>. Accepts shell globs for <old>. |
207 | replace-flags() { |
228 | replace-flags() { |
208 | [[ $# != 2 ]] \ |
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209 | && echo && eerror "Usage: replace-flags <old flag> <new flag>" \ |
229 | [[ $# != 2 ]] && die "Usage: replace-flags <old flag> <new flag>" |
210 | && die "replace-flags takes 2 arguments, not $#" |
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211 | |
230 | |
212 | local f fset |
231 | local f var new |
213 | declare -a new_CFLAGS new_CXXFLAGS new_FFLAGS new_FCFLAGS |
232 | for var in $(all-flag-vars) ; do |
214 | |
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215 | for fset in CFLAGS CXXFLAGS FFLAGS FCFLAGS; do |
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216 | # Looping over the flags instead of using a global |
233 | # Looping over the flags instead of using a global |
217 | # substitution ensures that we're working with flag atoms. |
234 | # substitution ensures that we're working with flag atoms. |
218 | # Otherwise globs like -O* have the potential to wipe out the |
235 | # Otherwise globs like -O* have the potential to wipe out the |
219 | # list of flags. |
236 | # list of flags. |
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237 | new=() |
220 | for f in ${!fset}; do |
238 | for f in ${!var} ; do |
221 | # Note this should work with globs like -O* |
239 | # Note this should work with globs like -O* |
222 | [[ ${f} == ${1} ]] && f=${2} |
240 | [[ ${f} == ${1} ]] && f=${2} |
223 | eval new_${fset}\[\${\#new_${fset}\[@]}]=\${f} |
241 | new+=( "${f}" ) |
224 | done |
242 | done |
225 | eval export ${fset}=\${new_${fset}\[*]} |
243 | eval export ${var}=\""${new[*]}"\" |
226 | done |
244 | done |
227 | |
245 | |
228 | return 0 |
246 | return 0 |
229 | } |
247 | } |
230 | |
248 | |
… | |
… | |
258 | # @USAGE: <flag> |
276 | # @USAGE: <flag> |
259 | # @DESCRIPTION: |
277 | # @DESCRIPTION: |
260 | # Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs. |
278 | # Returns shell true if <flag> is in {C,CXX,F,FC}FLAGS, else returns shell false. Accepts shell globs. |
261 | is-flagq() { |
279 | is-flagq() { |
262 | [[ -n $2 ]] && die "Usage: is-flag <flag>" |
280 | [[ -n $2 ]] && die "Usage: is-flag <flag>" |
263 | _is_flagq CFLAGS $1 || _is_flagq CXXFLAGS $1 || _is_flagq FFLAGS $1 || _is_flagq FCFLAGS $1 |
281 | |
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282 | local var |
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283 | for var in $(all-flag-vars) ; do |
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284 | _is_flagq ${var} "$1" && return 0 |
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285 | done |
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286 | return 1 |
264 | } |
287 | } |
265 | |
288 | |
266 | # @FUNCTION: is-flag |
289 | # @FUNCTION: is-flag |
267 | # @USAGE: <flag> |
290 | # @USAGE: <flag> |
268 | # @DESCRIPTION: |
291 | # @DESCRIPTION: |
… | |
… | |
322 | return 0 |
345 | return 0 |
323 | } |
346 | } |
324 | |
347 | |
325 | # @FUNCTION: strip-flags |
348 | # @FUNCTION: strip-flags |
326 | # @DESCRIPTION: |
349 | # @DESCRIPTION: |
327 | # Strip C[XX]FLAGS of everything except known good/safe flags. |
350 | # Strip *FLAGS of everything except known good/safe flags. This runs over all |
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351 | # flags returned by all_flag_vars(). |
328 | strip-flags() { |
352 | strip-flags() { |
329 | local x y flag NEW_CFLAGS NEW_CXXFLAGS NEW_FFLAGS NEW_FCFLAGS |
353 | local x y var |
330 | |
354 | |
331 | setup-allowed-flags |
355 | setup-allowed-flags |
332 | |
356 | |
333 | local NEW_CFLAGS="" |
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334 | local NEW_CXXFLAGS="" |
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335 | local NEW_FFLAGS="" |
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336 | local NEW_FCFLAGS="" |
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337 | |
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338 | # Allow unstable C[XX]FLAGS if we are using unstable profile ... |
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339 | if has "~$(tc-arch)" ${ACCEPT_KEYWORDS} ; then |
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340 | ALLOWED_FLAGS="${ALLOWED_FLAGS} ${UNSTABLE_FLAGS}" |
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341 | fi |
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342 | |
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343 | set -f # disable pathname expansion |
357 | set -f # disable pathname expansion |
344 | |
358 | |
345 | for x in ${CFLAGS}; do |
359 | for var in $(all-flag-vars) ; do |
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360 | local new=() |
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361 | |
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362 | for x in ${!var} ; do |
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363 | local flag=${x%%=*} |
346 | for y in ${ALLOWED_FLAGS}; do |
364 | for y in ${ALLOWED_FLAGS} ; do |
347 | flag=${x%%=*} |
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348 | if [ "${flag%%${y}}" = "" ] ; then |
365 | if [[ -z ${flag%%${y}} ]] ; then |
349 | NEW_CFLAGS="${NEW_CFLAGS} ${x}" |
366 | new+=( "${x}" ) |
350 | break |
367 | break |
351 | fi |
368 | fi |
352 | done |
369 | done |
353 | done |
370 | done |
354 | |
371 | |
355 | for x in ${CXXFLAGS}; do |
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356 | for y in ${ALLOWED_FLAGS}; do |
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357 | flag=${x%%=*} |
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358 | if [ "${flag%%${y}}" = "" ] ; then |
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359 | NEW_CXXFLAGS="${NEW_CXXFLAGS} ${x}" |
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360 | break |
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361 | fi |
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362 | done |
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363 | done |
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364 | |
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365 | for x in ${FFLAGS}; do |
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366 | for y in ${ALLOWED_FLAGS}; do |
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367 | flag=${x%%=*} |
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368 | if [ "${flag%%${y}}" = "" ] ; then |
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369 | NEW_FFLAGS="${NEW_FFLAGS} ${x}" |
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370 | break |
|
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371 | fi |
|
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372 | done |
|
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373 | done |
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374 | |
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375 | for x in ${FCFLAGS}; do |
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376 | for y in ${ALLOWED_FLAGS}; do |
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377 | flag=${x%%=*} |
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378 | if [ "${flag%%${y}}" = "" ] ; then |
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379 | NEW_FCFLAGS="${NEW_FCFLAGS} ${x}" |
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380 | break |
|
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381 | fi |
|
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382 | done |
|
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383 | done |
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384 | |
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385 | # In case we filtered out all optimization flags fallback to -O2 |
372 | # In case we filtered out all optimization flags fallback to -O2 |
386 | if [ "${CFLAGS/-O}" != "${CFLAGS}" -a "${NEW_CFLAGS/-O}" = "${NEW_CFLAGS}" ]; then |
373 | if _is_flagq ${var} "-O*" && ! _is_flagq new "-O*" ; then |
387 | NEW_CFLAGS="${NEW_CFLAGS} -O2" |
374 | new+=( -O2 ) |
388 | fi |
375 | fi |
389 | if [ "${CXXFLAGS/-O}" != "${CXXFLAGS}" -a "${NEW_CXXFLAGS/-O}" = "${NEW_CXXFLAGS}" ]; then |
376 | |
390 | NEW_CXXFLAGS="${NEW_CXXFLAGS} -O2" |
377 | eval export ${var}=\""${new[*]}"\" |
391 | fi |
378 | done |
392 | if [ "${FFLAGS/-O}" != "${FFLAGS}" -a "${NEW_FFLAGS/-O}" = "${NEW_FFLAGS}" ]; then |
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393 | NEW_FFLAGS="${NEW_FFLAGS} -O2" |
|
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394 | fi |
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395 | if [ "${FCFLAGS/-O}" != "${FCFLAGS}" -a "${NEW_FCFLAGS/-O}" = "${NEW_FCFLAGS}" ]; then |
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396 | NEW_FCFLAGS="${NEW_FCFLAGS} -O2" |
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397 | fi |
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398 | |
379 | |
399 | set +f # re-enable pathname expansion |
380 | set +f # re-enable pathname expansion |
400 | |
381 | |
401 | export CFLAGS="${NEW_CFLAGS}" |
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402 | export CXXFLAGS="${NEW_CXXFLAGS}" |
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403 | export FFLAGS="${NEW_FFLAGS}" |
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404 | export FCFLAGS="${NEW_FCFLAGS}" |
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|
405 | return 0 |
382 | return 0 |
406 | } |
383 | } |
407 | |
384 | |
408 | test-flag-PROG() { |
385 | test-flag-PROG() { |
409 | local comp=$1 |
386 | local comp=$1 |
410 | local flags="$2" |
387 | local flag=$2 |
411 | |
388 | |
412 | [[ -z ${comp} || -z ${flags} ]] && return 1 |
389 | [[ -z ${comp} || -z ${flag} ]] && return 1 |
413 | |
390 | |
414 | # use -c so we can test the assembler as well |
391 | # use -c so we can test the assembler as well |
415 | local PROG=$(tc-get${comp}) |
392 | local PROG=$(tc-get${comp}) |
416 | ${PROG} ${flags} -c -o /dev/null -xc /dev/null \ |
393 | ${PROG} "${flag}" -c -o /dev/null -xc /dev/null \ |
417 | > /dev/null 2>&1 |
394 | > /dev/null 2>&1 |
418 | } |
395 | } |
419 | |
396 | |
420 | # @FUNCTION: test-flag-CC |
397 | # @FUNCTION: test-flag-CC |
421 | # @USAGE: <flag> |
398 | # @USAGE: <flag> |
… | |
… | |
517 | # @FUNCTION: get-flag |
494 | # @FUNCTION: get-flag |
518 | # @USAGE: <flag> |
495 | # @USAGE: <flag> |
519 | # @DESCRIPTION: |
496 | # @DESCRIPTION: |
520 | # Find and echo the value for a particular flag. Accepts shell globs. |
497 | # Find and echo the value for a particular flag. Accepts shell globs. |
521 | get-flag() { |
498 | get-flag() { |
522 | local f findflag="$1" |
499 | local f var findflag="$1" |
523 | |
500 | |
524 | # this code looks a little flaky but seems to work for |
501 | # this code looks a little flaky but seems to work for |
525 | # everything we want ... |
502 | # everything we want ... |
526 | # for example, if CFLAGS="-march=i686": |
503 | # for example, if CFLAGS="-march=i686": |
527 | # `get-flag -march` == "-march=i686" |
504 | # `get-flag -march` == "-march=i686" |
528 | # `get-flag march` == "i686" |
505 | # `get-flag march` == "i686" |
529 | for f in ${CFLAGS} ${CXXFLAGS} ${FFLAGS} ${FCFLAGS} ; do |
506 | for var in $(all-flag-vars) ; do |
|
|
507 | for f in ${!var} ; do |
530 | if [ "${f/${findflag}}" != "${f}" ] ; then |
508 | if [ "${f/${findflag}}" != "${f}" ] ; then |
531 | printf "%s\n" "${f/-${findflag}=}" |
509 | printf "%s\n" "${f/-${findflag}=}" |
532 | return 0 |
510 | return 0 |
533 | fi |
511 | fi |
|
|
512 | done |
534 | done |
513 | done |
535 | return 1 |
514 | return 1 |
536 | } |
515 | } |
537 | |
|
|
538 | # DEAD FUNCS. Remove by Dec 2011. |
|
|
539 | test_flag() { die "$0: deprecated, please use test-flags()!" ; } |
|
|
540 | has_hardened() { die "$0: deprecated, please use gcc-specs-{relro,now}()!" ; } |
|
|
541 | has_pic() { die "$0: deprecated, please use gcc-specs-pie()!" ; } |
|
|
542 | has_pie() { die "$0: deprecated, please use gcc-specs-pie()!" ; } |
|
|
543 | has_ssp_all() { die "$0: deprecated, please use gcc-specs-ssp()!" ; } |
|
|
544 | has_ssp() { die "$0: deprecated, please use gcc-specs-ssp()!" ; } |
|
|
545 | |
516 | |
546 | # @FUNCTION: has_m64 |
517 | # @FUNCTION: has_m64 |
547 | # @DESCRIPTION: |
518 | # @DESCRIPTION: |
548 | # This doesn't test if the flag is accepted, it tests if the flag actually |
519 | # This doesn't test if the flag is accepted, it tests if the flag actually |
549 | # WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works |
520 | # WORKS. Non-multilib gcc will take both -m32 and -m64. If the flag works |
550 | # return code is 0, else the return code is 1. |
521 | # return code is 0, else the return code is 1. |
551 | has_m64() { |
522 | has_m64() { |
|
|
523 | eqawarn "${FUNCNAME}: don't use this anymore" |
|
|
524 | |
552 | # this doesnt test if the flag is accepted, it tests if the flag |
525 | # this doesnt test if the flag is accepted, it tests if the flag |
553 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
526 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
554 | # please dont replace this function with test_flag in some future |
527 | # please dont replace this function with test_flag in some future |
555 | # clean-up! |
528 | # clean-up! |
556 | |
529 | |
… | |
… | |
562 | rm -f "${temp}".c |
535 | rm -f "${temp}".c |
563 | [[ ${ret} != 1 ]] && return 0 |
536 | [[ ${ret} != 1 ]] && return 0 |
564 | return 1 |
537 | return 1 |
565 | } |
538 | } |
566 | |
539 | |
567 | # @FUNCTION: has_m32 |
|
|
568 | # @DESCRIPTION: |
|
|
569 | # This doesn't test if the flag is accepted, it tests if the flag actually |
|
|
570 | # WORKS. Non-mulilib gcc will take both -m32 and -64. If the flag works return |
|
|
571 | # code is 0, else return code is 1. |
|
|
572 | has_m32() { |
540 | has_m32() { |
573 | # this doesnt test if the flag is accepted, it tests if the flag |
541 | die "${FUNCNAME}: don't use this anymore" |
574 | # actually -WORKS-. non-multilib gcc will take both -m32 and -m64! |
|
|
575 | # please dont replace this function with test_flag in some future |
|
|
576 | # clean-up! |
|
|
577 | |
|
|
578 | [ "$(tc-arch)" = "amd64" ] && has_multilib_profile && return 0 |
|
|
579 | |
|
|
580 | local temp=$(emktemp) |
|
|
581 | echo "int main() { return(0); }" > "${temp}".c |
|
|
582 | MY_CC=$(tc-getCC) |
|
|
583 | ${MY_CC/ .*/} -m32 -o "$(emktemp)" "${temp}".c > /dev/null 2>&1 |
|
|
584 | local ret=$? |
|
|
585 | rm -f "${temp}".c |
|
|
586 | [[ ${ret} != 1 ]] && return 0 |
|
|
587 | return 1 |
|
|
588 | } |
542 | } |
589 | |
543 | |
590 | # @FUNCTION: replace-sparc64-flags |
544 | # @FUNCTION: replace-sparc64-flags |
591 | # @DESCRIPTION: |
545 | # @DESCRIPTION: |
592 | # Sets mcpu to v8 and uses the original value as mtune if none specified. |
546 | # Sets mcpu to v8 and uses the original value as mtune if none specified. |
… | |
… | |
626 | for flag in "$@"; do |
580 | for flag in "$@"; do |
627 | [[ ${flag} == -l* ]] && flag=${flag#-l} |
581 | [[ ${flag} == -l* ]] && flag=${flag#-l} |
628 | export LIBS="${LIBS} -l${flag}" |
582 | export LIBS="${LIBS} -l${flag}" |
629 | done |
583 | done |
630 | |
584 | |
631 | return 0 |
|
|
632 | } |
|
|
633 | |
|
|
634 | # @FUNCTION: append-ldflags |
|
|
635 | # @USAGE: <flags> |
|
|
636 | # @DESCRIPTION: |
|
|
637 | # Add extra <flags> to the current LDFLAGS. |
|
|
638 | append-ldflags() { |
|
|
639 | [[ $# -eq 0 ]] && return 0 |
|
|
640 | local flag |
|
|
641 | for flag in "$@"; do |
|
|
642 | [[ ${flag} == -l* ]] && \ |
|
|
643 | ewarn "Appending a library link instruction (${flag}); libraries to link to should not be passed through LDFLAGS" |
|
|
644 | done |
|
|
645 | |
|
|
646 | export LDFLAGS="${LDFLAGS} $*" |
|
|
647 | return 0 |
|
|
648 | } |
|
|
649 | |
|
|
650 | # @FUNCTION: filter-ldflags |
|
|
651 | # @USAGE: <flags> |
|
|
652 | # @DESCRIPTION: |
|
|
653 | # Remove particular <flags> from LDFLAGS. Accepts shell globs. |
|
|
654 | filter-ldflags() { |
|
|
655 | _filter-var LDFLAGS "$@" |
|
|
656 | return 0 |
585 | return 0 |
657 | } |
586 | } |
658 | |
587 | |
659 | # @FUNCTION: raw-ldflags |
588 | # @FUNCTION: raw-ldflags |
660 | # @USAGE: [flags] |
589 | # @USAGE: [flags] |
… | |
… | |
682 | *GNU*) # GNU ld |
611 | *GNU*) # GNU ld |
683 | echo "-Wl,--no-as-needed" ;; |
612 | echo "-Wl,--no-as-needed" ;; |
684 | esac |
613 | esac |
685 | } |
614 | } |
686 | |
615 | |
687 | # Some tests for when we screw with things and want to make |
616 | fi |
688 | # sure we didn't break anything |
|
|
689 | #TESTS() { |
|
|
690 | # CFLAGS="-a -b -c=1" |
|
|
691 | # CXXFLAGS="-x -y -z=2" |
|
|
692 | # LDFLAGS="-l -m -n=3" |
|
|
693 | # |
|
|
694 | # die() { exit 1; } |
|
|
695 | # (is-flag 1 2 3) && die |
|
|
696 | # (is-ldflag 1 2 3) && die |
|
|
697 | # |
|
|
698 | # is-flagq -l && die |
|
|
699 | # is-ldflagq -a && die |
|
|
700 | # is-flagq -a || die |
|
|
701 | # is-flagq -x || die |
|
|
702 | # is-ldflagq -n=* || die |
|
|
703 | # is-ldflagq -n && die |
|
|
704 | # |
|
|
705 | # strip-unsupported-flags |
|
|
706 | # [[ ${CFLAGS} == "-c=1" ]] || die |
|
|
707 | # [[ ${CXXFLAGS} == "-y -z=2" ]] || die |
|
|
708 | # |
|
|
709 | # echo "All tests pass" |
|
|
710 | #} |
|
|
711 | #TESTS |
|
|